Improvement in brick-machines



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Letters Patent No. 98,547, dated January 4, 1870.

IMPROVEMENT IN BRICK-MACHINES.

The Schedule referred to in these Letters Patent and making part, of thesame To all ul'hom it may concern Be it known that we, THOMAS BISHOP andDANIEL AGNEW, of Vincennes, in the county of KnoX,and in the State ofIndiana, have invented .certain new and useful Improvements inBrick-Machines; and dohereby declare that the following is a full,clear, and lexact descriptiouthereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,making a part of this specification.

The nature of our inventionconsists lin the construction and generalarrangemeutof a brink-inachine2 and its moulds.

In order to enable others skilled in the art to which our inventionappertains, to make and use the same, we will now proceed to describeits construction Vand operation, referring to the annexed drawings, inWhich- Figure l chine; y

Figure 2 is a bottom View of the same;

Figure 3 is aV plan view of i the mould;

Figure 4 is an end view of the same; and Figure 5 isa verticalcross-section, taken `through line :c z, iig. 3.

Figure 6 is an enlarged vertical cross-section of the die-plate. Y

Figure 7 is a side view of the adjustable bars upon which the'inner endof the mould-rack rests.

Figure 8 is a side view of the presser-wings.

' Figure 9 is a plan view of one ofthe cutters or workers, and

Figure 10 is a cross-section of the same, taken through line y y, fig.9. y

A represents the receptacle for the mud, or mud-V gum, as it isgenerally called, rest-ing upon wheels B B, so lthat it can be movedreadily to any place desired.- In thedrawings we have represented themudgum as being square, but in a full-sized machine we intend to lillthe front corners to a circle, to fit the is a perspective view of thebrick-mapress-wings, which will prevent the mud from squeezing up,andwill force it into the mould.

At the front side, in the bottom ofthe mud-gum A, is placed thedic-plateC, the front edge of the under side of `which is bevelled, as shown -iniig. 6, at a, so that on the principle of a wedge it will press thegravel-stones in the clay into the brick, and will thus y, prevent thebreaking of the mould by the gravel catchshaft in the cent-re toward theouter rim of `the mudgum, thereby causing them to fill thernould better.

Above the press-wings E E, on the shaft D, is

placed a series of curved and bevelled cutters or workers,\F F, which,when they revolve with the shaft,

work the mud downward in the mud-gum toward thel y in which the foot dof the rack Hv is placed.

The rack H is formed of a frame, of any suitable size, having rollers ee running across the same, from the front side to a cross-bar, f, in theframe, which cross-bar is placed at such a distance from the rear .sideof the ii'ameas to form a space at the rear end of' the frame equal tothe width of the mould.

In this space is placed a series of rollers, g g, running at right'angles from the rollers c e.

By this construction of the rack there will be little Vor no friction ofthe moulds, as the moulds are always ou rollers, they being put ouendwise on the rollers g g, for which purpose a roller, h, is placed inthe side of the machine, andwvhen filled they are moved outwardlengthwise across the rollers e e, by means that will be hereinafterdescribed.

The front or outer end of the rack H is raised and lowered to adjust themould to the under side of the die-plate C, by means of a bent bar, I,having a crank, i, at one end,

Above the opening where the moulds are moved out after being tilled, isplaced a roller, J', covered with cloth, for the mould to pass outunder. This roller should he creased about one-siiteenth of an inch overeach partition ot' the mould, and will press the brick into theI mould,smooth the top, and do away with all feather-edge. The cloth being wetprevents the mud 'from adhering to the roller.

The journals of the roller J pass through slots in standards K. K, andhave rubber' springs above them in said slots, so as t'o allow theroller to yield slightly, if necessary.

On the opposite-side of the machine from that ou which the roller h issituated, is placed a bumper, L, for the mould to strike against wheninserted. This bumper consists ot'a bent bar inserted in suitable heads,and adjusted by set-screws' at any point desired, as shown in fig. 2. l

' edge of the frame It, in suc-h a manner as to be even with the underside of the bottom l.

In the frame mv are secured a series of partitions, n n, which fit inthe grooves on the sides of the frame 7c, and are of the same height asthis latter frame.

The ends of the frame on are provided each with a vertically slottedplate, o, and an car, p, and saidiframe is then attached by means of ascrew passing through the slot in each plate o, into the ends oftheframe k.

After the mould is filled, to empty thes'ame, turn it bottom up, pressthe thumbs on the bottom, catching the ears p1. at the ends, and raisingthe partitions n u.'

Above the mud-gum A, upon the shaft D, is placed a colla-r with twocams, N N, which, as the shaft revolves, each in its turn operates upona friction-roller, O, placed on the under side of' a slotted slidingbar, l), which moves on the upper side ofthe machine, and is guided inits movement by means of'flanged rollers r r, as shown in fig. 1.

The cams N N bulge considerably from the eye, so thatthcy give astraightforward push, instead of pressing sideways 0n the slotted slidewhen it start-s t-o push it forward by the friction-roller.

Upon the slide P are secured three bars, R It, forming a triangularfran'ie, to which, on each side of' the machine, is pivoted a lever, S.

This lever extends dow'n along the side of the machine, and is at asuitable point pivoted to another lever, T, which in turn is pivoted tothe side of the machine.

One end of the lever T is slotted, and adjusted at any point desired bya set-screw, s, so as t-o lengthen or shorten the stroke, to snit thedistance the mould is to be moved when it is filled.

The lower endsof the levers S S are connected by a bar, V, which, afterthe mould has been filled, forces the mould out eaeh'time the cam Nmoves the slide P.

Under the bottom of the mud-gum A, at the rear side, is a standard, YV,having a rod, t, extending horizontally forward.

'lhis rod is surrounded by a spiral spring, e, which, at its rear end,bears against a slide, w, connected by a rod or chain with the bar V, sothat when said bar has moved the mould out, the spring 1: will cause thesaid bar V, and with it the levers S S, and slide P, to move back totheir original position, ready to be again operated by the cam.

Having thus fully described our invention,

What we claim as new, and desire to secure by Letters Patent, is-

2. The combination of the rack H, adjustable 1evers G G, and bent bar/I,with crank fi, when constructed and operated substantially as and forthe purposes herein set forth.

2.' The combination of the standards K K and clothcovered roller J,having its yielding bearings in said standards, and with openings placedabove the journals, substantially' as and for the purposes herein setforth. V

3. The mould M, composed of the frames k1 m., loose bot-tom l,partitions n n,I slotted plates o o, and bars p p, constructed andarranged as and for the purposes herein set forth.

4. The die-plate O, having the front edge of its under side beve-Hed,substantially as and for the purposes herein set forth.

5. The arrangement ofthe camsN N, friction-roller O, slide l), fra-me R,levers S S, and bar V, all substantially as and for the purposes hereinset forth.

6. The arrangement ofthe rod t, springt, and slide tu, connected withthe bar V, substantially as and for the purposes herein set forth. v

'In testimony thatwe claim the foregoing, we'have hereunto set ourhands, this (ith day of November, 1869.

THOMAS BlSHOP. DANIEL AGNEW.

Witnesses:

AQUILLA I. WooDALL, \V. H. DE WOLF.

